I bought the shop version of HP Tuners and VCM suite. I have yet to even install it on my PC. I have a Dynojet 224x and plan to tune my personal vehicle a 2011 CTS-V to familiarize myself with the software. This brings up my question, I have read a little and this seems to be a nightmare to adjust something as marginal WOT A/F ratio. I am proficient in tuning Accel DFI, BS3 and F.A.S.T. efi systems. Is this software that difficult? For example, if I have a flat A/F ratio of 13:1 from 3000-6000 RPM an I want to increase it to 12:1, what steps need to be taken? I can accomplish this in less than 30 seconds on an aftermarket EFI.... Am I missing something? Thanks in advance!